Results 21 to 30 of about 15,462 (278)
Digital holographic microscopy for microalgae biovolume assessment
Optics Communications, 2015 Abstract The relative amount of biomass in a body of water is one of the various indicators widely used in water quality evaluation. This implies complex tasks such as identification and characterization of microorganisms and measurement of their biovolume.
A. C. Monaldi +3 more
semanticscholar +3 more sources
Marine Ecology, EarlyView., 2023 Abstract Microplastic input into the ocean represents an increasing threat to marine biota and may endanger the functioning of marine ecosystems, especially in semi‐enclosed basins, such as the Mediterranean Sea. The size spectrum of microplastics overlaps with that of nano‐microplankton (2–200 μm), thus potentially misleading suspension‐feeding ...
Claudia Traboni +3 more
wiley +1 more source
Algorithm to estimate cell biovolume using image analyzed microscopy [PDF]
Cytometry, 1989 AbstractThis paper describes an algorithm for calculating the biovolume of cells with simple shapes, such as bacteria, flagellates, and simple ciliates, from a 2‐dimensional digital image. The method can be adapted to any image analysis system which allows access to the binary cell image—(i.e.), the pixels, or (x, y) points, composing the cell.
M E, Sieracki, C L, Viles, K L, Webb
openaire +2 more sources
Methods for the estimation of the biovolume of microorganisms: A critical review [PDF]
, 2017 Alessandro Saccà
openalex +2 more sources
Types and Distribution of Bioactive Polyunsaturated Aldehydes in a Gradient from Mesotrophic to OligotrophicWaters in the Alborán Sea (Western Mediterranean) [PDF]
, 2020 Polyunsaturated aldehydes (PUAs) are bioactive molecules suggested as chemical defenses and infochemicals. In marine coastal habitats, diatoms reach high PUA production levels during bloom episodes.
Bartual Magro, Ana +11 more
core +1 more source
Microorganisms, 2022 The climate-driven changes in temperature, in combination with high inputs of nutrients through anthropogenic activities, significantly affect phytoplankton communities in shallow lakes. This study aimed to assess the effect of nutrients on the community
Veronika Dashkova +6 more
doaj +1 more source
Bacterial Biovolume and Biomass Estimations [PDF]
Applied and Environmental Microbiology, 1985 The biomass of bacterial populations in aquatic ecosystems is often estimated by measuring bacterial biovolume and converting this into biomass in terms of carbon. A reliable conversion factor relating the measured bacterial biovolume to bacterial carbon content is essential for this approach. Based on direct measurements of bacterial cell
openaire +2 more sources
Acta Biologica Slovenica, 2018 Sensors based on in vivo measurements of photosynthetic pigments fluorescence enable real-time phytoplankton monitoring with high spatial and temporal resolution. A combination of chlorophyll a (CHL) and phycocyanin (PC) fluorescence sensors was used for
Tinkara Rozina +3 more
doaj +1 more source
Acta Limnologica Brasiliensia, 2014 AIM: Models of phytoplankton functional classification based on functional (FGs) and morphological (MBFGs) traits can be an important tool in aquatic monitoring.
Jascieli Carla Bortolini +3 more
doaj +1 more source
Acta Limnologica Brasiliensia, 2012 AIM: This study assessed the phycoperiphyton biomass in two regions submitted to different human impacts on Juara Lake, a coastal ecosystem with multiple uses, to order to test the hypothesis that the sampling sites that receive domestic sewage shows ...
Stéfano Zorzal de Almeida +1 more
doaj +3 more sources